1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b01ccbd9d6c46ad8a0d33192432c14bc16b94634a0dd9d70199f5e5af282632. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70c38edc-ba44-4649-ae96-1d845a20cbf0.json and https://artists.proofprofile.net/proofs/artist/70c38edc-ba44-4649-ae96-1d845a20cbf0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7610367f372d380ab144f3987032e3de4c3a42393ad1a1d0716ecd9cf18b720c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR8G11100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ced4c097fb7d8627d9bf572a0046c67fd8c64357b8c41dd1de405567d10309c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR8G11100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371dc6e825bd429ced289ed21d5f2f0166e282092d45181c014fcde8727ca43d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR8G11100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1be3e37fb28258b574dcd1e402d68000b766055023daa31320cf5d9da3b5978. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR8G11100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b6993a42efa6d0a807dd57ceabaa11004725fe5337bdb4e9b18d7e1b60cc80. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR8G11100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871b6e1a2e0f2c644abf31c7e88d74853daaea8d553b63207ced84d2b0caf2d5. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfdc7652a35e19f1377c5501adcf5364880e96a02735c29e651e061d5226c71. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc82e3c6a4000dde9059d837602089c49e4e544b84b5b8901ac5199500060452. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dd9af1833ee479930ac7599804891525c422fba5a1312247d3243091ccddd4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6af0d2199f61e4a3b8194501d4b3260ae8877f84f37f1b162631f7d7bd0b4dc. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9a09bf6b57f8fff32ead9d6a53ad89b8fc6c7c2581c1bcb0dbe5bc906ed95d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed02e6d405733dbe064497ca8aa6df995270c2734d347f15f49626665b9a06a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1400001.
The Copan Connection: Bixiga 70 Meets Victor Rice
The Copan Connection: BIXIGA 70 meets Victor Rice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898571781d0671524b31f7a9c7e39dbe7806c6ab2f05da8bbf6261077f0b3ab9. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35598823a441748050b2a0d1fd11e70f784fe379a8cf37ee7fe1cd67b36d36b8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607155894583955f6927acb18049b914513c59188b22890dbca07446cb5acba6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQ1T2300004.